Portable Electromotive Assistive Device for Rivet Assembly

ABSTRACT

The present invention relates to a portable electromotive assistive device for rivet assembly which includes a housing, a control mechanism, a power mechanism and a clamping mechanism. The housing includes a middle housing, an upper housing and a lower housing. The inner wall of the second cavity is provided with a first guiding chute and a second guiding chute. The control mechanism includes a controller, a battery, and a control switch. The power mechanism includes a motor, a screw, a slider, a sleeve, and a tension spring. The clamping mechanism is a conical structure composed of a plurality of wedge blocks. The upper ends of the wedge blocks of the clamping mechanism are disposed at a gap with each other. The lower ends of the wedge blocks are magnetized to be mutually attracted. The clamping mechanism is provided with a clamping through hole along the central axis. The device has a simple and reasonable structure, easy to use, high intelligent, safe and reliable, time and labor saving, and high practicability, etc. which effectively solves the problem of poor practicability of existing rivet assembly devices.

FIELD OF THE INVENTION

The present invention relates to the field of assistive device for rivet assembly. In particular, the invention relates to a portable electromotive assistive device for rivet assembly.

BACKGROUND

For traditional riveting devices, rivets are riveted into the material to be fixed mainly by manual hitting. The defect of the riveting method is that the rivets are easily deformed and bent, because the direction of the force when hitting cannot accurately act on the central axis of the rivet. This would cause stress concentration, resulting in unreliable fastening, and inconvenient operation. Manual operation is laborious and inefficient which requires intense personnel labor, and thus cannot form industrialization. Currently, rotary riveting devices emerge, but they are bulky and inconvenient to carry. In addition, their structure is complicated and the price is high, and the practicability is not strong.

SUMMARY

The technical problem to be solved by the present invention to provide a portable electromotive assistive device for rivet assembly. The device has a simple and reasonable structure, easy to use, high intelligent, safe and reliable, time and labor saving, and high practicability, etc. which effectively solves the problem of poor practicability of existing rivet assembly devices.

The technical solution of the present invention is to provide a portable electromotive assistive device for rivet assembly which includes a housing, a control mechanism, a power mechanism and a clamping mechanism. The housing includes a middle housing, an upper housing and a lower housing. The middle housing has a hollow structure. The middle housing is provided with a first cavity, a second cavity and a third cavity from top to bottom. The upper housing is connected to the upper end opening of the middle housing. The lower housing is connected to the lower end opening of the middle housing.

The inner wall of the second cavity is vertically symmetrically disposed with a first guiding chute and a second guiding chute. The second guiding chute includes a vertical section and an arc section connected to each other. A guiding plate is arranged at an upper joint of the vertical section and the arc section. One end of the guiding plate is hinged with the inner cavity of the middle housing. The other end of the guiding plate extends into the vertical section.

The control mechanism includes a controller disposed in the first cavity, a battery, and a control switch disposed on the upper housing.

The power mechanism includes a motor fixedly disposed in the first cavity, a screw connected to the motor, a slider connected to the screw, and a sleeve sleeved with the screw, and a tension spring sleeved on the sleeve. Two ends of the tension spring are respectively fixedly connected to the lower end of the second cavity and the sleeve.

The slider is slidably coupled to the second guiding chute, and has an L-shaped buckle at the bottom of the slider. The L-shaped buckle includes a straight rod with an integral structure and a curved rod. The upper end of the sleeve is provided with a convex ring. The convex ring is provided with an arc-shaped through hole adapted to the L-shaped buckle and is slidably connected with the first guiding chute.

The clamping mechanism is disposed in the third cavity. The clamping mechanism is a conical structure composed of a plurality of wedge blocks. The outer wall surface of the upper end of the wedge block is provided with a ring buckle. A support ring connected to the inner wall of the third cavity penetrates the ring buckle and the upper ends of the wedge blocks are disposed at a gap with each other. The lower ends of the wedge blocks are magnetized to be mutually attracted. The clamping mechanism is provided with a clamping through hole along the central axis.

Further, the control switch is a push switch, and a rubber cover is disposed on the upper housing to cover the control switch.

Further, the lower housing is provided with a plurality of horizontal rulers and/or vertical rulers for stabilizing the housing and determining the riveting position.

Further, the measuring surface of the horizontal ruler aligns with the bottom surface of the lower housing. The measuring surface of the vertical ruler aligns with the vertical surface of the lower housing. The horizontal ruler is indicated with scales, with the central axis of the clamping through hole being as the zero point.

Further, the control mechanism further includes a USB connection port for charging and data transmission.

Further, a bearing is fixed between the first cavity and the second cavity, and the screw passes through the bearing and is fixedly connected to the inner ring thereof.

Further, the slider is provided with a distance sensor, and the detecting end of the distance sensor faces the inner wall of the upper end of the second cavity.

Further, the bottom of the sleeve is provided with a rubber cushion.

Further, the controller is electrically connected to the battery, the control switch, the motor, the USB connection port, and the distance sensor, respectively.

The technical effect of the present invention is to provide a portable electromotive assistive device for rivet assembly which includes a housing, a control mechanism, a power mechanism and a clamping mechanism. A horizontal ruler and/or a vertical ruler are arranged on the housing to facilitate the determination of the riveting position. It also makes the rivet more easily riveted into the material to be fixed at a certain angle. The rivet is clamped in the housing by the clamping mechanism. The power mechanism taps the rivet under the control of the control mechanism. The rivet is parallel or coincident with the central axis of the sleeve of the power mechanism when the rivet is clamped, and the clamping force acting on the side of the rivet avoids the deformation caused by uneven force on the rivet. The device has a simple and reasonable structure, easy to use, high intelligent, safe and reliable, time and labor saving, and high practicability, etc. which effectively solves the problem of poor practicability of existing rivet assembly devices.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 shows a cross-section of the whole structure of a portable electromotive assistive device for rivet assembly in accordance with an example embodiment.

FIG. 2 shows a cross-section of a housing of a portable electromotive assistive device for rivet assembly in accordance with an example embodiment.

FIG. 3 shows a schematic diagram of connection of a screw, a sleeve, a slider of a portable electromotive assistive device for rivet assembly in accordance with an example embodiment.

FIG. 4 shows a schematic diagram of an L-shaped buckle of a portable electromotive assistive device for rivet assembly in accordance with an example embodiment.

FIG. 5 shows a top view of a convex ring of a portable electromotive assistive device for rivet assembly in accordance with an example embodiment.

FIG. 6 shows a schematic diagram of connection of a claiming mechanism and a lower housing of a portable electromotive assistive device for rivet assembly in accordance with an example embodiment.

FIG. 7 shows a schematic diagram of a claiming mechanism of a portable electromotive assistive device for rivet assembly in accordance with an example embodiment.

The reference numbers of the figures are as follows.

1: housing; 11: middle housing; 12: upper housing; 121: rubber cover; 13: lower housing; 14: horizontal ruler; 15: vertical ruler; 16: first cavity; 17: second cavity; 171: first guiding chute; 18: second guiding chute; 181: vertical section; 182: arc section; 183: guiding plate; 19: third cavity; 2: control mechanism; 21: controller; 22: battery; 23: control switch; 24: USB connection port; 3: power mechanism; 31: motor; 32: screw; 33: slider; 331: L-shaped buckle; 3311: straight rod; 3312: curved rod; 34: sleeve; 341: arc-shaped through hole; 342: rubber cushion; 343: convex ring; 35: tension spring; 36: bearing; 37: distance sensor; 4: claiming mechanism; 41: wedge block; 42: support ring; 43: ring buckle; 44: claiming through hole

DETAILED DESCRIPTION

The invention is illustrated by the following figures and embodiments.

As shown in FIG. 1, a portable electromotive assistive device for rivet assembly includes a housing 1, a control mechanism 2, a power mechanism 3 and a clamping mechanism 4.

As shown in FIG. 2, the housing 1 includes a middle housing 11, an upper housing 12 and a lower housing 13. The middle housing 11 has a hollow structure. The middle housing 11 is provided with a first cavity 16, a second cavity 17 and a third cavity 19 from top to bottom. The first cavity 16, the second cavity 17 and the third cavity 19 communicate with each other. The upper housing 12 is connected to the upper end opening of the middle housing 11. The lower housing 13 is connected to the lower end opening of the middle housing 11.

The inner wall of the second cavity 17 is vertically symmetrically disposed with a first guiding chute 171 and a second guiding chute 18. In an example, the second guiding chute 18 is separately disposed between the two first guiding chutes 171. In another embodiment, the second guiding chute 18 is disposed between the first guiding chutes 171 and the two second guiding chutes 18 are symmetric with respect to the axial section of the housing 1.

The second guiding chute 18 includes a vertical section 181 and an arc section 182 connected to each other. The vertical section 181 is disposed in parallel with the central axis of the inner cavity of the housing 1. When the second guiding chutes 18 are symmetrically disposed, the structure of one of the second guiding chutes 18 is obtained by rotating another second guiding chute 18 at 180° along the central axis of the housing 1.

A guiding plate 183 is arranged at an upper joint of the vertical section 181 and the arc section 182. One end of the guiding plate 183 is hinged with the inner cavity of the middle housing 11. The other end of the guiding plate 183 extends into the vertical section 181. In an example, a magnet is arranged at the joint of the vertical section 181 and the arc section 182, and the guiding plate 183 is made of a magnetized material and is attracted to the magnet.

As shown in FIG. 1, the control mechanism 2 includes a controller 21 disposed in the first cavity 16, a battery 22, and a control switch 23 disposed on the upper housing 12.

The power mechanism 3 includes a motor 31 fixedly disposed in the first cavity 16, a screw 32 connected to the motor 31, a slider 33 connected to the screw 32, and a sleeve 34 sleeved with the screw 32, and a tension spring 35 sleeved on the sleeve 34. Two ends of the tension spring 35 are respectively fixedly connected to the lower end of the second cavity 17 and the sleeve 34. The slider 33 is slidably connected to the second guiding chute 18.

As shown in FIG. 3, the slider 33 has an L-shaped buckle 331 at the bottom of the slider. As shown in FIG. 4, the L-shaped buckle 331 includes a straight rod 3311 with an integral structure and a curved rod 3312.

As shown in FIG. 3, the upper end of the sleeve 34 is provided with a convex ring 343. As shown in FIG. 5, the convex ring 343 is provided with an arc-shaped through hole 341 adapted to the L-shaped buckle 331 and is slidably connected with the first guiding chute 171.

In operation, the slider 33 is guided by the guiding plate 183, moving from the upper joint of the vertical section 181 and the arc section 182 downwards along the arc section 182. During the process, the slider 33 drives L-shaped buckle 331 to rotate until it runs to the lower joint of the vertical section 181 and the arc section 182 and snaps into the arc-shaped through hole 341. Afterwards, the slider moves upward along the vertical section 181, while the tension spring 35 drives the sleeve 34 to move upward. The slider 33 pushes the guiding plate and moves till the upper joint of the vertical section 181 a nd the arc section 182, and move downward again along the arc section 182. In the process, the slider 33 drives the L-shaped buckle to rotate again and escapes out of the arc-shaped through hole 341. The sleeve 34 is tapped downward due to the action of the tension spring 35. Afterwards, the slider 33 continues to run to the lower joint of the vertical section 181 and the arc section 182, so that the L-shaped buckle 331 snaps into the arc-shaped through hole 341 and life the sleeve 34 upward. the lower section of the curved section 182. The L-shaped buckle 331 is snapped into the arc-shaped through hole 341 and the sleeve 34 is lifted upward. The operations loop in turn so that the sleeve 34 repeatedly taps downward.

As shown in FIGS. 6 and 7, the clamping mechanism 4 is disposed in the third cavity 19. The clamping mechanism 4 is a conical structure composed of a plurality of wedge blocks 41. The outer wall surface of the upper end of the wedge block 41 is provided with a ring buckle 43. A support ring 42 connected to the inner wall of the third cavity 19 penetrates the ring buckle 43 and the upper ends of the wedge blocks 41 are disposed at a gap with each other. The lower ends of the wedge blocks 41 are magnetized to be mutually attracted. The clamping mechanism 4 is provided with a clamping through hole 44 along the central axis. In an example, the lower end of the clamping through hole 44 is chamfered to facilitate the penetration of the rivet into the clamping through hole 44. In order to better clamp the rivet, the clamping through hole 44 and the side structure of the rivet should be the same or similar. For example, a round rivet should operate with a round clamping through hole 44. To rive the rivet deeper, the clamping through hole 44 may be a stepped hole.

In an example of FIG. 1, the control switch 23 is a push switch, and a rubber cover 121 is disposed on the upper housing 12 to cover the control switch 23. Control command is transmitted to the controller 21 by different tapping methods. For example, long press can switch the device on or off. Single clicking can make the sleeve 34 do a single tap, and double clicking makes the sleeve 34 continuously tap.

In an example of FIG. 1, the lower housing 13 is provided with a plurality of horizontal rulers 14 and/or vertical rulers 15 for stabilizing the housing and determining the riveting position. When the horizontal ruler 14 is used, at least two mutually perpendicular horizontal rulers 14 are used in combination, and of course, when the horizontal ruler 14 is used, the vertical rule 15 can also be used in combination.

In an example of FIG. 1, the measuring surface of the horizontal ruler 14 aligns with the bottom surface of the lower housing 13. The measuring surface of the vertical ruler 15 aligns with the vertical surface of the lower housing 13. The bottom surface of the lower housing 13 and the radial section of the housing may form a certain angle to be suitable for oblique riveting. The horizontal ruler 14 is indicated with scales, with the central axis of the clamping through hole 44 being as the zero point.

In an example of FIG. 1, the control mechanism 2 further includes a USB connection port 24 for charging and data transmission.

In an example of FIG. 1, a bearing 36 is fixed between the first cavity 16 and the second cavity 17, and the screw 32 passes through the bearing 36 and is fixedly connected to the inner ring thereof.

In an example of FIG. 1, the slider 33 is provided with a distance sensor 37, and the detecting end of the distance sensor 37 faces the inner wall of the upper end of the second cavity 17. The distance sensor 37 is used for the controller 21 to judge the position information at which the slider 33 is currently operated. Based on the position information, the motor can control the movement of the slider 33 by forward or reverse rotation.

In an example of FIG. 3, the bottom of the sleeve 34 is provided with a rubber cushion 342.

The controller 21 is electrically connected to the battery 22, the control switch 23, the motor 31, the USB connection port 24, and the distance sensor 37, respectively. Based on such connection, the distance sensor 37 can obtain the position information on the movement of the slider 33, and the controller 21 controls the operation of the motor by pressing the control switch 23.

The portable electromotive assistive device for rivet assembly of the present invention includes a housing, a control mechanism, a power mechanism and a clamping mechanism. A horizontal ruler and/or a vertical ruler are arranged on the housing to facilitate the determination of the riveting position. It also makes the rivet more easily riveted into the material to be fixed at a certain angle. The rivet is clamped in the housing by the clamping mechanism. The power mechanism taps the rivet under the control of the control mechanism. The rivet is parallel or coincident with the central axis of the sleeve of the power mechanism when the rivet is clamped, and the clamping force acting on the side of the rivet avoids the deformation caused by uneven force on the rivet. The device has a simple and reasonable structure, easy to use, high intelligent, safe and reliable, time and labor saving, and high practicability, etc. which effectively solves the problem of poor practicability of existing rivet assembly devices.

The exemplary embodiments of the present invention are thus fully described. Although the description referred to particular embodiments; it will be clear to one skilled in the art that the present invention may be practiced with variations of these specific details. Hence this invention should not be construed as limited to the embodiments set forth herein. 

What is claimed is:
 1. A portable electromotive assistive device for rivet assembly, comprising: a housing 1, a control mechanism 2, a power mechanism 3 and a clamping mechanism 4, wherein the housing 1 includes a middle housing 11, an upper housing 12 and a lower housing 13; the middle housing 11 has a hollow structure; the middle housing 11 is provided with a first cavity 16, a second cavity 17 and a third cavity 19 from top to bottom; the upper housing 12 is connected to the upper end opening of the middle housing 11; the lower housing 13 is connected to the lower end opening of the middle housing 11, wherein the inner wall of the second cavity 17 is vertically symmetrically disposed with a first guiding chute 171 and a second guiding chute 18; the second guiding chute 18 includes a vertical section 181 and an arc section 182 connected to each other; a guiding plate 183 is arranged at an upper joint of the vertical section 181 and the arc section 182; one end of the guiding plate 183 is hinged with the inner cavity of the middle housing 11; the other end of the guiding plate 183 extends into the vertical section 181, wherein the control mechanism 2 includes a controller 21 disposed in the first cavity 16, a battery 22, and a control switch 23 disposed on the upper housing 12, wherein the power mechanism 3 includes a motor 31 fixedly disposed in the first cavity 16, a screw 32 connected to the motor 31, a slider 33 connected to the screw 32, and a sleeve 34 sleeved with the screw 32, and a tension spring 35 sleeved on the sleeve 34; two ends of the tension spring 35 are respectively fixedly connected to the lower end of the second cavity 17 and the sleeve 34, wherein the slider 33 is slidably connected to the second guiding chute 18 and has an L-shaped buckle 331 at the bottom of the slider; the L-shaped buckle 331 includes a straight rod 3311 with an integral structure and a curved rod 3312; the upper end of the sleeve 34 is provided with a convex ring 343; the convex ring 343 is provided with an arc-shaped through hole 341 adapted to the L-shaped buckle 331 and is slidably connected with the first guiding chute 171, wherein the clamping mechanism 4 is disposed in the third cavity 19; the clamping mechanism 4 is a conical structure composed of a plurality of wedge blocks 41; the outer wall surface of the upper end of the wedge block 41 is provided with a ring buckle 43; a support ring 42 connected to the inner wall of the third cavity 19 penetrates the ring buckle 43 and the upper ends of the wedge blocks 41 are disposed at a gap with each other; the lower ends of the wedge blocks 41 are magnetized to be mutually attracted; the clamping mechanism 4 is provided with a clamping through hole 44 along the central axis.
 2. The portable electromotive assistive device for rivet assembly of claim 1, wherein the control switch 23 is a push switch, and a rubber cover 121 is disposed on the upper housing 12 to cover the control switch
 23. 3. The portable electromotive assistive device for rivet assembly of claim 1, wherein the lower housing 13 is provided with a plurality of horizontal rulers 14 and/or vertical rulers 15 for stabilizing the housing and determining the riveting position.
 4. The portable electromotive assistive device for rivet assembly of claim 1, wherein the measuring surface of the horizontal ruler 14 aligns with the bottom surface of the lower housing 13; the measuring surface of the vertical ruler 15 aligns with the vertical surface of the lower housing 13; the horizontal ruler 14 is indicated with scales, with the central axis of the clamping through hole 44 being as the zero point.
 5. The portable electromotive assistive device for rivet assembly of claim 1, wherein the control mechanism 2 further includes a USB connection port 24 for charging and data transmission.
 6. The portable electromotive assistive device for rivet assembly of claim 1, wherein a bearing 36 is fixed between the first cavity 16 and the second cavity 17, and the screw 32 passes through the bearing 36 and is fixedly connected to the inner ring thereof.
 7. The portable electromotive assistive device for rivet assembly of claim 1, wherein the slider 33 is provided with a distance sensor 37, and the detecting end of the distance sensor 37 faces the inner wall of the upper end of the second cavity
 17. 8. The portable electromotive assistive device for rivet assembly of claim 1, wherein the bottom of the sleeve 34 is provided with a rubber cushion
 342. 9. The portable electromotive assistive device for rivet assembly of claim 1, wherein the controller 21 is electrically connected to the battery 22, the control switch 23, the motor 31, the USB connection port 24, and the distance sensor 37, respectively. 